Combined with the variable frequency transformation of the induced fan in my company, the variable frequency speed regulation technology is ripe, and the electricity-saving effect is significant.
结合我公司引风机的变频改造，认为变频调速技术已经成熟，节电效果显著，在其他转机上可以应用。
Variable frequency and variable speed motor system is of high intelligence, high reliability, fault-tolerant capability.
变频调速电动机系统具有高智能、高可靠性和高容错能力。
An integrating device of variable frequency and speed-down is an important driving and control unit which combines a variable frequency module, a variable frequency motor and a retarder.
变频减速一体机是将变频模块、变频电机和减速机有机集成一体的重要传动控制单元。
Variable voltage and variable frequency system based on vector control is applied widely in high speed train.
基于矢量控制的变压变频调速在高速列车中得到广泛应用。
The topic of Energy saving on motor system has always being researched by scholars, and the variable frequency variable speed technology has been paid the focus attention among the researches.
电机节能问题一直是广大学者研究的热点，在电机节能技术中最受瞩目的是变频调速技术。
In this paper GTR Base-drive circuits on PWM variable frequency and variable speed systems for induction motor drive are studied.
本文介绍了为异步电动机PW M变频调速系统而研制的GTR基极驱动电路。
To improve the efficiency of wind power utilization, we employ more and more variable-pitch controllers and variable-speed constant-frequency (VSCF) controllers in wind-power generating systems.
风力发电系统为了更充分更有效的利用风能，越来越多的采用变桨控制系统和变速恒频控制系统。
Variable frequency and variable speed motor system is of high reliability, fault-tolerant capability and high intelligence.
变频调速电动机系统具有高可靠性和高容错能力，具有高智能。
Variable frequency and variable speed motor system is of high reliability, fault-tolerant capability and high intelligence.
变频调速电动机系统具有高可靠性和高容错能力，具有高智能。
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